PingPong Platform - Backend System

Group Project | My Role: Backend, Security & DevOps Lead
Django | PostgreSQL | Docker | Nginx | WebSockets | OAuth/JWT | GDPR Compliance

🔧 My Contributions

Containerized Services with Docker & Docker Compose:

Django backend

PostgreSQL with persistent volumes

Redis for WebSocket messaging

Nginx reverse proxy with SSL termination

Production-Grade Nginx Configuration:

Load balancing

Static file serving

WebSocket proxy (/ws/ route)

🛡️ Security Modules

• Two-Factor Authentication (2FA) with TOTP (Google Authenticator)
• JWT Token Authentication with refresh tokens
• OAuth 2.0 Integration (Google + 42Intra)
• Password Hashing (bcrypt)
• SQL Injection/XSS Protection (Django ORM sanitization)

📊 GDPR Compliance

• Local data management dashboard
• Account deletion pipeline with confirmation

👥 User Management

• Registration/login
• Profile management
• Friend system with online status
• Blocklist functionality

💬 Real-Time Chat

• WebSocket-based direct messaging
• Game invitations via chat
• Tournament notifications
• Message persistence with privacy controls
• and more

🐳 Deployment Guide

Prerequisites

Docker 20.10+

Docker Compose 2.5+

Production Setup

Clone repository:

git clone https://github.com/Duru-DR/PingPongDjango.git
cd PingPongDjango/Manage_services
make

📈 System Architecture

graph TD
  classDef component fill:#2d2d2d,stroke:#666,color:#fff;
  classDef database fill:#1a3d5c,stroke:#4a90e2,color:#fff;
  classDef arrow stroke:#4a90e2,color:#fff;

  A[Client] -->|HTTPS| B[Nginx:443]
  B -->|Proxy| C[Django:8800]
  B -->|WS| D[WebSockets]
  C --> E[(PostgreSQL)]
  C --> F[Redis]
  D --> F

  class A arrow;
  class B,C,D component;
  class E,F database;

Loading